The south suburban native was in court today at the Daley Center.
A last-minute attempt to settle the custody dispute failed before court began this morning.
Wade's attorneys have accused the boys' mother, Siohvaughn, of "bizarre" behavior and tampering with Wade's scheduled visitation time with the 8- and 3-year-old boys.
Dwyane and Siohvaughn Wade were embroiled for years in an ugly divorce that was finally settled in June.
Both are seeking sole custody. Wade's attorneys expect the trial to last until mid-October.